S-P-L – Sound Pressure League – the name says it all! With these mono amplifiers, SPL-aficionados compete for the most powerful sound pressure . These amps have the best conditions to keep up with the big players in sound pressure competitions. All siblings of this mono Ultra-Class D digital amplifier series – from the smallest to the biggest – brings XXL loads of subwoofer power into the vehicle. Of course, also these amps offer just the top price-performance ratio the brand stands for. Ultra-Class D technology with very high efficiency and enormous power featuring high-quality, screwed cinch sockets, encapsulated connection terminals, internal fans, clipping LEDs, and an inner life that can compete with any high-priced competitor. These massive black power plants are the first choice for every bass lover.